Adding basic Metro Print Metrics.

BUG=136041
TEST=Make sure metro print actions are logged as histograms.


Review URL: https://chromiumcodereview.appspot.com/10831272

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@151285 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/printing/print_view_manager.cc

@@ -9,6 +9,7 @@
 #include "base/bind.h"
 #include "base/lazy_instance.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/metrics/histogram.h"
 #include "base/timer.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
@@ -109,6 +110,9 @@ bool PrintViewManager::AdvancedPrintNow() {
 }
 
 bool PrintViewManager::PrintToDestination() {
+  // TODO(mad): Remove this once we can send user metrics from the metro driver.
+  // crbug.com/142330
+  UMA_HISTOGRAM_ENUMERATION("Metro.Print", 0, 2);
   // TODO(mad): Use a passed in destination interface instead.
   g_browser_process->print_job_manager()->SetPrintDestination(
       printing::CreatePrintDestination());

printing/printing_context_win.cc

@@ -11,6 +11,7 @@
 #include "base/i18n/file_util_icu.h"
 #include "base/i18n/time_formatting.h"
 #include "base/message_loop.h"
+#include "base/metrics/histogram.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
@@ -230,9 +231,13 @@ void PrintingContextWin::AskUserForSettings(
       MetroShowPrintUI metro_show_print_ui =
           reinterpret_cast<MetroShowPrintUI>(
               ::GetProcAddress(metro_module, "MetroShowPrintUI"));
-      if (metro_show_print_ui)
+      if (metro_show_print_ui) {
+        // TODO(mad): Remove this once we can send user metrics from the metro
+        // driver. crbug.com/142330
+        UMA_HISTOGRAM_ENUMERATION("Metro.Print", 1, 2);
         metro_show_print_ui();
       }
+    }
     return callback.Run(CANCEL);
   }
   dialog_box_dismissed_ = false;